The Mizuno men's GX-Sonic IV ST technical suit is engineered for speed. The Sprinter (ST) model is designed exclusively for short distance sprints offering a hip lift sensation and optimal compression.

*Note: These elite tech suits are engineered to fit very tightly, like another layer of skin.If you have any questions about your size, please contact customer service.

Key Features:

FINA Approved: Approved by FINA for National and International Swimming Competitions. FINA Approved racing swimsuits have a unique FINA barcode printed on the swimsuit, making it easily identifiable to swimming officials.

GX-SONIC Series: Mizuno's most elite swim product, built for competition.